201023231002 has 16 divisors (see below), whose sum is σ = 329134816512. Its totient is φ = 91322053920.

The previous prime is 201023230939. The next prime is 201023231009. The reversal of 201023231002 is 200132320102.

It is not an unprimeable number, because it can be changed into a prime (201023231009) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2567658 + ... + 2644789.

It is an arithmetic number, because the mean of its divisors is an integer number (20570926032).

Almost surely, 2^201023231002 is an apocalyptic number.

201023231002 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

201023231002 is a deficient number, since it is larger than the sum of its proper divisors (128111585510).

201023231002 is a wasteful number, since it uses less digits than its factorization.

201023231002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5214213.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 201023231002 its reverse (200132320102), we get a palindrome (401155551104).

The spelling of 201023231002 in words is "two hundred one billion, twenty-three million, two hundred thirty-one thousand, two".